/* icmp6.h - ICMPv6 header file */

/*
 * Copyright (c) 2001-2005 Wind River Systems, Inc.
 *
 * The right to copy, distribute, modify or otherwise make use
 * of this software may be licensed only pursuant to the terms
 * of an applicable Wind River license agreement.
 */

/*	$KAME: icmp6.h,v 1.97 2005/04/01 07:31:01 suz Exp $	*/
/*	$KAME: icmp6.h,v 1.94 2004/07/09 14:13:59 suz Exp $	*/
/*	$FreeBSD: src/sys/netinet/icmp6.h,v 1.2.2.5 2002/06/29 18:31:11 ume Exp $	*/
/*	$KAME: icmp6.h,v 1.46 2001/04/27 15:09:48 itojun Exp $	*/

/*
 * Copyright (c) 2002 INRIA. All rights reserved.
 *
 * Implementation of Multicast Listener Discovery, Version 2.
 * Developed by Hitoshi Asaeda, INRIA, February 2002.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of INRIA nor the names of its contributors may be
 *    used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

/*
 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the project nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

/*
 * Copyright (c) 1982, 1986, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)ip_icmp.h	8.1 (Berkeley) 6/10/93
 */

/*
modification history
--------------------
01l,19jun05,dlk  Modify prototype for icmp6_mtudisc_update() (SPR #110450).
01k,30may05,dlk  Avoid compiler warnings and improve efficiency in kernel
                 versions of ICMP6_FILTER_SETBLOCKALL/SETPASSALL.
01j,09may05,rp   merged from kame v1.97
01i,19apr05,rp   merged from comp_wn_ipv6_mld_interim-dev
01h,07feb05,vvv  _KERNEL cleanup
01g,14jan05,vvv  osdep.h cleanup
01f,20nov03,niq  Remove copyright_wrs.h file inclusion
01e,07aug03,nee  Merging from ACCORDION_BASE6_MERGE_BASELINE label in
                 Accordion to Base6
01d,29apr03,syy  Added #ifdef for __cplusplus
01c,01feb03,pas  merge from FreeBSD 4.7 - changed MLD6* to MLD*
01b,23oct02,ppp  removed __attribute__((__packed__)) from some of the
		 structures in order to fix alignment issues with some of
		 the architectures such as mips and sh
01a,06sep01,qli  1st round of porting and compiles
*/

#ifndef _NETINET_ICMP6_H_
#define _NETINET_ICMP6_H_

#ifdef __cplusplus
extern "C" {
#endif

#define ICMPV6_PLD_MAXLEN	1232	/* IPV6_MMTU - sizeof(struct ip6_hdr)
					   - sizeof(struct icmp6_hdr) */

struct icmp6_hdr {
	u_int8_t	icmp6_type;	/* type field */
	u_int8_t	icmp6_code;	/* code field */
	u_int16_t	icmp6_cksum;	/* checksum field */
	union {
		u_int32_t	icmp6_un_data32[1]; /* type-specific field */
		u_int16_t	icmp6_un_data16[2]; /* type-specific field */
		u_int8_t	icmp6_un_data8[4];  /* type-specific field */
	} icmp6_dataun;
};

#define icmp6_data32	icmp6_dataun.icmp6_un_data32
#define icmp6_data16	icmp6_dataun.icmp6_un_data16
#define icmp6_data8	icmp6_dataun.icmp6_un_data8
#define icmp6_pptr	icmp6_data32[0]		/* parameter prob */
#define icmp6_mtu	icmp6_data32[0]		/* packet too big */
#define icmp6_id	icmp6_data16[0]		/* echo request/reply */
#define icmp6_seq	icmp6_data16[1]		/* echo request/reply */
#define icmp6_maxdelay	icmp6_data16[0]		/* mcast group membership */

#define ICMP6_DST_UNREACH		1	/* dest unreachable, codes: */
#define ICMP6_PACKET_TOO_BIG		2	/* packet too big */
#define ICMP6_TIME_EXCEEDED		3	/* time exceeded, code: */
#define ICMP6_PARAM_PROB		4	/* ip6 header bad */

#define ICMP6_ECHO_REQUEST		128	/* echo service */
#define ICMP6_ECHO_REPLY		129	/* echo reply */
#define MLD_LISTENER_QUERY		130 	/* multicast listener query */
#define MLD_LISTENER_REPORT		131	/* multicast listener report */
#define MLD_LISTENER_DONE		132	/* multicast listener done */
#define MLD_LISTENER_REDUCTION MLD_LISTENER_DONE /* RFC3542 definition */

/* RFC2292 decls */
#define ICMP6_MEMBERSHIP_QUERY		130	/* group membership query */
#define ICMP6_MEMBERSHIP_REPORT		131	/* group membership report */
#define ICMP6_MEMBERSHIP_REDUCTION	132	/* group membership termination */

/* the followings are for backward compatibility to old KAME apps. */

#define MLD6_LISTENER_QUERY	MLD_LISTENER_QUERY
#define MLD6_LISTENER_REPORT	MLD_LISTENER_REPORT
#define MLD6_LISTENER_DONE	MLD_LISTENER_DONE

#define ND_ROUTER_SOLICIT		133	/* router solicitation */
#define ND_ROUTER_ADVERT		134	/* router advertisement */
#define ND_NEIGHBOR_SOLICIT		135	/* neighbor solicitation */
#define ND_NEIGHBOR_ADVERT		136	/* neighbor advertisement */
#define ND_REDIRECT			137	/* redirect */

#define ICMP6_ROUTER_RENUMBERING	138	/* router renumbering */

#define ICMP6_WRUREQUEST		139	/* who are you request */
#define ICMP6_WRUREPLY			140	/* who are you reply */
#define ICMP6_FQDN_QUERY		139	/* FQDN query */
#define ICMP6_FQDN_REPLY		140	/* FQDN reply */
#define ICMP6_NI_QUERY			139	/* node information request */
#define ICMP6_NI_REPLY			140	/* node information reply */

/* The belows are not yet defined in 2292bis. They will be renamed */
#define IND_SOLICIT			141	/* inverse neighbor solicitation */
#define IND_ADVERT			142	/* inverse neighbor advertisement */
#define MLDV2_LISTENER_REPORT		143	/* MLDv2 report */

/* Folloing numbers are defined in the mobile-ip draft. */
#define MIP6_HA_DISCOVERY_REQUEST	144	/* home agent address discovery request */
#define MIP6_HA_DISCOVERY_REPLY		145	/* home agent address discovery reply */
#define MIP6_PREFIX_SOLICIT		146	/* mobile prefix solicitation */
#define MIP6_PREFIX_ADVERT		147	/* mobile prefix advertisement */

/* The definitions below are experimental. TBA */
#define MLD_MTRACE_RESP			200	/* mtrace resp (to sender) */
#define MLD_MTRACE			201	/* mtrace messages */

/* backward compatibility for applications using old macro names */
#define MLD6_MTRACE_RESP	MLD_MTRACE_RESP
#define MLD6_MTRACE		MLD_MTRACE
#define MLD6V2_LISTENER_REPORT	MLDV2_LISTENER_REPORT

#define ICMP6_MAXTYPE			201

#define ICMP6_DST_UNREACH_NOROUTE	0	/* no route to destination */
#define ICMP6_DST_UNREACH_ADMIN	 	1	/* administratively prohibited */
#define ICMP6_DST_UNREACH_NOTNEIGHBOR	2	/* not a neighbor(obsolete) */
#define ICMP6_DST_UNREACH_BEYONDSCOPE	2	/* beyond scope of source address */
#define ICMP6_DST_UNREACH_ADDR		3	/* address unreachable */
#define ICMP6_DST_UNREACH_NOPORT	4	/* port unreachable */

#define ICMP6_TIME_EXCEED_TRANSIT 	0	/* ttl==0 in transit */
#define ICMP6_TIME_EXCEED_REASSEMBLY	1	/* ttl==0 in reass */

#define ICMP6_PARAMPROB_HEADER 	 	0	/* erroneous header field */
#define ICMP6_PARAMPROB_NEXTHEADER	1	/* unrecognized next header */
#define ICMP6_PARAMPROB_OPTION		2	/* unrecognized option */

#define ICMP6_INFOMSG_MASK		0x80	/* all informational messages */

#define ICMP6_NI_SUBJ_IPV6	0	/* Query Subject is an IPv6 address */
#define ICMP6_NI_SUBJ_FQDN	1	/* Query Subject is a Domain name */
#define ICMP6_NI_SUBJ_IPV4	2	/* Query Subject is an IPv4 address */

#define ICMP6_NI_SUCCESS	0	/* node information successful reply */
#define ICMP6_NI_REFUSED	1	/* node information request is refused */
#define ICMP6_NI_UNKNOWN	2	/* unknown Qtype */

#define ICMP6_ROUTER_RENUMBERING_COMMAND  0	/* rr command */
#define ICMP6_ROUTER_RENUMBERING_RESULT   1	/* rr result */
#define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET   255	/* rr seq num reset */

/* Used in kernel only */
#define ND_REDIRECT_ONLINK	0	/* redirect to an on-link node */
#define ND_REDIRECT_ROUTER	1	/* redirect to a better router */

/*
 * Multicast Listener Discovery
 */
struct mld_hdr {
	struct icmp6_hdr	mld_icmp6_hdr;
	struct in6_addr		mld_addr; /* multicast address */
};

/* definitions to provide backward compatibility to old KAME applications */

#define mld6_hdr	mld_hdr
#define mld6_type	mld_type
#define mld6_code	mld_code
#define mld6_cksum	mld_cksum
#define mld6_maxdelay	mld_maxdelay
#define mld6_reserved	mld_reserved
#define mld6_addr	mld_addr

/* shortcut macro definitions */
#define mld_type	mld_icmp6_hdr.icmp6_type
#define mld_code	mld_icmp6_hdr.icmp6_code
#define mld_cksum	mld_icmp6_hdr.icmp6_cksum
#define mld_maxdelay	mld_icmp6_hdr.icmp6_data16[0]
#define mld_reserved	mld_icmp6_hdr.icmp6_data16[1]

/*
 * Multicast Listener Discovery Version 2
 */
struct mldv2_hdr {
	struct icmp6_hdr	mld_icmp6_hdr;
	struct in6_addr		mld_addr;	/* multicast address */
	u_int8_t		mld_rtval;	/* Reserved, S Flag and QRV */
	u_int8_t	 	mld_qqi;	/* querier's query interval (QQI) */
	u_int16_t		mld_numsrc;	/* number of sources (0 for general */
						/* and group-specific queries) */
	struct in6_addr		mld_src[1];	/* source address list */	
};

#define MLD_MRC_EXP(x)	((ntohs(x) >> 12) & 0x0007)
#define MLD_MRC_MANT(x)	(ntohs(x) & 0x0fff)
#define MLD_QQIC_EXP(x)	(((x) >> 4) & 0x07)
#define MLD_QQIC_MANT(x)	((x) & 0x0f)
#define MLD_QRESV(x)	(((x) >> 4) & 0x0f)
#define MLD_SFLAG(x)	(((x) >> 3) & 0x01)
#define MLD_QRV(x)	((x) & 0x07)	/* querier's robustness variable   */

/*
 * MLDv2 Membership Report Message header.
 */
struct mld_report_hdr {
	struct icmp6_hdr	mld_icmp6_hdr;	/* version & type of MLD message */
};

/* shortcut macro definition */
#define mld_grpnum	mld_icmp6_hdr.icmp6_data16[1]

/*
 * MLDv2 Group Record header.
 */
struct mld_group_record_hdr {
	u_int8_t	record_type;	/* record types for membership report */
	u_int8_t	auxlen;		/* aux data length (must be zero)     */
	u_int16_t               numsrc;         /* number of sources        */
        struct in6_addr         group;          /* group address            */
        struct in6_addr         src[1];         /* source address list      */
};

#define MLD_V1_QUERY			0
#define MLD_V2_GENERAL_QUERY		1
#define MLD_V2_GROUP_QUERY		2
#define MLD_V2_GROUP_SOURCE_QUERY	3

#define MLD_MINLEN			24
#define MLD_V2_QUERY_MINLEN		28


/*
 * Group Record Types in the MLD Membership Report
 */
#define MODE_IS_INCLUDE                 1
#define MODE_IS_EXCLUDE                 2
#define CHANGE_TO_INCLUDE_MODE          3
#define CHANGE_TO_EXCLUDE_MODE          4
#define ALLOW_NEW_SOURCES               5
#define BLOCK_OLD_SOURCES               6

/*
 * Neighbor Discovery
 */

struct nd_router_solicit {	/* router solicitation */
	struct icmp6_hdr 	nd_rs_hdr;
	/* could be followed by options */
};

#define nd_rs_type	nd_rs_hdr.icmp6_type
#define nd_rs_code	nd_rs_hdr.icmp6_code
#define nd_rs_cksum	nd_rs_hdr.icmp6_cksum
#define nd_rs_reserved	nd_rs_hdr.icmp6_data32[0]

struct nd_router_advert {	/* router advertisement */
	struct icmp6_hdr	nd_ra_hdr;
	u_int32_t		nd_ra_reachable;	/* reachable time */
	u_int32_t		nd_ra_retransmit;	/* retransmit timer */
	/* could be followed by options */
};

#define nd_ra_type		nd_ra_hdr.icmp6_type
#define nd_ra_code		nd_ra_hdr.icmp6_code
#define nd_ra_cksum		nd_ra_hdr.icmp6_cksum
#define nd_ra_curhoplimit	nd_ra_hdr.icmp6_data8[0]
#define nd_ra_flags_reserved	nd_ra_hdr.icmp6_data8[1]
#define ND_RA_FLAG_MANAGED	0x80
#define ND_RA_FLAG_OTHER	0x40
#define ND_RA_FLAG_HOME_AGENT	0x20

/*
 * Router preference values based on draft-draves-ipngwg-router-selection-01.
 * These are non-standard definitions.
 */
#define ND_RA_FLAG_RTPREF_MASK	0x18 /* 00011000 */

#define ND_RA_FLAG_RTPREF_HIGH	0x08 /* 00001000 */
#define ND_RA_FLAG_RTPREF_MEDIUM	0x00 /* 00000000 */
#define ND_RA_FLAG_RTPREF_LOW	0x18 /* 00011000 */
#define ND_RA_FLAG_RTPREF_RSV	0x10 /* 00010000 */

#define nd_ra_router_lifetime	nd_ra_hdr.icmp6_data16[1]

struct nd_neighbor_solicit {	/* neighbor solicitation */
	struct icmp6_hdr	nd_ns_hdr;
	struct in6_addr		nd_ns_target;	/*target address */
	/* could be followed by options */
};

#define nd_ns_type		nd_ns_hdr.icmp6_type
#define nd_ns_code		nd_ns_hdr.icmp6_code
#define nd_ns_cksum		nd_ns_hdr.icmp6_cksum
#define nd_ns_reserved		nd_ns_hdr.icmp6_data32[0]

struct nd_neighbor_advert {	/* neighbor advertisement */
	struct icmp6_hdr	nd_na_hdr;
	struct in6_addr		nd_na_target;	/* target address */
	/* could be followed by options */
};

#define nd_na_type		nd_na_hdr.icmp6_type
#define nd_na_code		nd_na_hdr.icmp6_code
#define nd_na_cksum		nd_na_hdr.icmp6_cksum
#define nd_na_flags_reserved	nd_na_hdr.icmp6_data32[0]
#if _BYTE_ORDER == _BIG_ENDIAN
#define ND_NA_FLAG_ROUTER		0x80000000
#define ND_NA_FLAG_SOLICITED		0x40000000
#define ND_NA_FLAG_OVERRIDE		0x20000000
#else
#if _BYTE_ORDER == _LITTLE_ENDIAN
#define ND_NA_FLAG_ROUTER		0x80
#define ND_NA_FLAG_SOLICITED		0x40
#define ND_NA_FLAG_OVERRIDE		0x20
#endif
#endif

struct nd_redirect {		/* redirect */
	struct icmp6_hdr	nd_rd_hdr;
	struct in6_addr		nd_rd_target;	/* target address */
	struct in6_addr		nd_rd_dst;	/* destination address */
	/* could be followed by options */
};

#define nd_rd_type		nd_rd_hdr.icmp6_type
#define nd_rd_code		nd_rd_hdr.icmp6_code
#define nd_rd_cksum		nd_rd_hdr.icmp6_cksum
#define nd_rd_reserved		nd_rd_hdr.icmp6_data32[0]

struct ind_neighbor_solicit {	/* inverse neighbor solicitation */
	struct icmp6_hdr	ind_ns_hdr;
	/* could be followed by options */
};

#define ind_ns_type		ind_ns_hdr.icmp6_type
#define ind_ns_code		ind_ns_hdr.icmp6_code
#define ind_ns_cksum		ind_ns_hdr.icmp6_cksum
#define ind_ns_reserved		ind_ns_hdr.icmp6_data32[0]

struct ind_neighbor_advert {	/* inverse neighbor advertisement */
	struct icmp6_hdr	ind_na_hdr;
	/* could be followed by options */
};

#define ind_na_type		ind_na_hdr.icmp6_type
#define ind_na_code		ind_na_hdr.icmp6_code
#define ind_na_cksum		ind_na_hdr.icmp6_cksum
#define ind_na_flags_reserved	ind_na_hdr.icmp6_data32[0]

struct mip6_dhaad_req {		/* HA Address Discovery Request */
	struct icmp6_hdr	mip6_dhreq_hdr;
};

#define mip6_dhreq_type		mip6_dhreq_hdr.icmp6_type
#define mip6_dhreq_code		mip6_dhreq_hdr.icmp6_code
#define mip6_dhreq_cksum	mip6_dhreq_hdr.icmp6_cksum
#define mip6_dhreq_id		mip6_dhreq_hdr.icmp6_data16[0]
#define mip6_dhreq_reserved	mip6_dhreq_hdr.icmp6_data16[1]

#if _BYTE_ORDER == _BIG_ENDIAN
#define MIP6_DHREQ_FLAG_MR	0x8000
#endif /* _BIG_ENDIAN */
#if _BYTE_ORDER == _LITTLE_ENDIAN
#define MIP6_DHREQ_FLAG_MR	0x0080
#endif /* _LITTLE_ENDIAN */


struct mip6_dhaad_rep {		/* HA Address Discovery Reply */
	struct icmp6_hdr	mip6_dhrep_hdr;
	/* could be followed by home agent addresses */
};

#define mip6_dhrep_type		mip6_dhrep_hdr.icmp6_type
#define mip6_dhrep_code		mip6_dhrep_hdr.icmp6_code
#define mip6_dhrep_cksum	mip6_dhrep_hdr.icmp6_cksum
#define mip6_dhrep_id		mip6_dhrep_hdr.icmp6_data16[0]
#define mip6_dhrep_reserved	mip6_dhrep_hdr.icmp6_data16[1]

#if _BYTE_ORDER == _BIG_ENDIAN
#define MIP6_DHREP_FLAG_MR	0x8000
#endif /* _BIG_ENDIAN */
#if _BYTE_ORDER == _LITTLE_ENDIAN
#define MIP6_DHREP_FLAG_MR	0x0080
#endif /* _LITTLE_ENDIAN */

struct mip6_prefix_solicit {	/* Mobile Prefix Solicitation */
	struct icmp6_hdr	mip6_ps_hdr;
};

#define mip6_ps_type		mip6_ps_hdr.icmp6_type
#define mip6_ps_code		mip6_ps_hdr.icmp6_code
#define mip6_ps_cksum		mip6_ps_hdr.icmp6_cksum
#define mip6_ps_id		mip6_ps_hdr.icmp6_data16[0]
#define mip6_ps_reserved	mip6_ps_hdr.icmp6_data16[1]

struct mip6_prefix_advert {	/* Mobile Prefix Advertisement */
	struct icmp6_hdr	mip6_pa_hdr;
	/* followed by options */
};

#define mip6_pa_type		mip6_pa_hdr.icmp6_type
#define mip6_pa_code		mip6_pa_hdr.icmp6_code
#define mip6_pa_cksum		mip6_pa_hdr.icmp6_cksum
#define mip6_pa_id		mip6_pa_hdr.icmp6_data16[0]
#define mip6_pa_flags_reserved	mip6_pa_hdr.icmp6_data16[1]
#if _BYTE_ORDER == _BIG_ENDIAN
#define MIP6_PA_FLAG_MANAGED	0x8000
#define MIP6_PA_FLAG_OTHER	0x4000
#endif /* _BIG_ENDIAN */
#if _BYTE_ORDER == _LITTLE_ENDIAN
#define MIP6_PA_FLAG_MANAGED	0x0080
#define MIP6_PA_FLAG_OTHER	0x0040
#endif /* _LITTLE_ENDIAN */

struct nd_opt_hdr {		/* Neighbor discovery option header */
	u_int8_t	nd_opt_type;
	u_int8_t	nd_opt_len;
	/* followed by option specific data*/
};

#define ND_OPT_SOURCE_LINKADDR		1
#define ND_OPT_TARGET_LINKADDR		2
#define ND_OPT_PREFIX_INFORMATION	3
#define ND_OPT_REDIRECTED_HEADER	4
#define ND_OPT_MTU			5
#define ND_OPT_ADV_INTERVAL		7	/* 2292bis-02 */
#define ND_OPT_HA_INFORMATION		8	/* 2292bis-02 */
#define ND_OPT_SOURCE_ADDRLIST		9	/* will be renamed */
#define ND_OPT_TARGET_ADDRLIST		10	/* will be renamed */

#define ND_OPT_ROUTE_INFO		200	/* draft-ietf-ipngwg-router-preference, not officially assigned yet */

struct nd_opt_prefix_info {	/* prefix information */
	u_int8_t	nd_opt_pi_type;
	u_int8_t	nd_opt_pi_len;
	u_int8_t	nd_opt_pi_prefix_len;
	u_int8_t	nd_opt_pi_flags_reserved;
	u_int32_t	nd_opt_pi_valid_time;
	u_int32_t	nd_opt_pi_preferred_time;
	u_int32_t	nd_opt_pi_reserved2;
	struct in6_addr	nd_opt_pi_prefix;
};

#define ND_OPT_PI_FLAG_ONLINK		0x80
#define ND_OPT_PI_FLAG_AUTO		0x40
#define ND_OPT_PI_FLAG_ROUTER		0x20	/* 2292bis-02 */

struct nd_opt_rd_hdr {		/* redirected header */
	u_int8_t	nd_opt_rh_type;
	u_int8_t	nd_opt_rh_len;
	u_int16_t	nd_opt_rh_reserved1;
	u_int32_t	nd_opt_rh_reserved2;
	/* followed by IP header and data */
};

struct nd_opt_mtu {		/* MTU option */
	u_int8_t	nd_opt_mtu_type;
	u_int8_t	nd_opt_mtu_len;
	u_int16_t	nd_opt_mtu_reserved;
	u_int32_t	nd_opt_mtu_mtu;
};

struct nd_opt_adv_interval {	/* Advertisement interval option */
	u_int8_t	nd_opt_ai_type;
	u_int8_t	nd_opt_ai_len;
	u_int16_t	nd_opt_ai_reserved;
	u_int32_t	nd_opt_ai_interval;
};

struct nd_opt_homeagent_info {	/* Home Agent info */
	u_int8_t	nd_opt_hai_type;
	u_int8_t	nd_opt_hai_len;
	u_int16_t	nd_opt_hai_reserved;
	u_int16_t	nd_opt_hai_preference;
	u_int16_t	nd_opt_hai_lifetime;
};

#if _BYTE_ORDER == _BIG_ENDIAN
#define MIP6_HAINFO_FLAG_MR	0x8000
#endif /* _BIG_ENDIAN */
#if _BYTE_ORDER == _LITTLE_ENDIAN
#define MIP6_HAINFO_FLAG_MR	0x0080
#endif /* _LITTLE_ENDIAN */

struct nd_opt_route_info {	/* route info */
	u_int8_t	nd_opt_rti_type;
	u_int8_t	nd_opt_rti_len;
	u_int8_t	nd_opt_rti_prefixlen;
	u_int8_t	nd_opt_rti_flags;
	u_int32_t	nd_opt_rti_lifetime;
	/* prefix follows */
};

/*
 * icmp6 namelookup
 */

struct icmp6_namelookup {
	struct icmp6_hdr 	icmp6_nl_hdr;
	u_int8_t	icmp6_nl_nonce[8];
	int32_t		icmp6_nl_ttl;
#if 0
	u_int8_t	icmp6_nl_len;
	u_int8_t	icmp6_nl_name[3];
#endif
	/* could be followed by options */
};

/*
 * icmp6 node information
 */
struct icmp6_nodeinfo {
	struct icmp6_hdr icmp6_ni_hdr;
	u_int8_t icmp6_ni_nonce[8];
	/* could be followed by reply data */
};

#define ni_type		icmp6_ni_hdr.icmp6_type
#define ni_code		icmp6_ni_hdr.icmp6_code
#define ni_cksum	icmp6_ni_hdr.icmp6_cksum
#define ni_qtype	icmp6_ni_hdr.icmp6_data16[0]
#define ni_flags	icmp6_ni_hdr.icmp6_data16[1]

#define NI_QTYPE_NOOP		0 /* NOOP  */
#define NI_QTYPE_SUPTYPES	1 /* Supported Qtypes */
#define NI_QTYPE_FQDN		2 /* FQDN (draft 04) */
#define NI_QTYPE_DNSNAME	2 /* DNS Name (draft 05-07) */
#define NI_QTYPE_NODENAME	2 /* Node Name (draft 08) */
#define NI_QTYPE_NODEADDR	3 /* Node Addresses */
#define NI_QTYPE_IPV4ADDR	4 /* IPv4 Addresses */

#if _BYTE_ORDER == _BIG_ENDIAN
#define NI_SUPTYPE_FLAG_COMPRESS	0x1
#define NI_FQDN_FLAG_VALIDTTL		0x1
#define NI_NODENAME_FLAG_VALIDTTL	0x1
#elif _BYTE_ORDER == _LITTLE_ENDIAN
#define NI_SUPTYPE_FLAG_COMPRESS	0x0100
#define NI_FQDN_FLAG_VALIDTTL		0x0100
#define NI_NODENAME_FLAG_VALIDTTL	0x0100
#endif

#ifdef NAME_LOOKUPS_04
#if _BYTE_ORDER == _BIG_ENDIAN
#define NI_NODEADDR_FLAG_LINKLOCAL	0x1
#define NI_NODEADDR_FLAG_SITELOCAL	0x2
#define NI_NODEADDR_FLAG_GLOBAL		0x4
#define NI_NODEADDR_FLAG_ALL		0x8
#define NI_NODEADDR_FLAG_TRUNCATE	0x10
#define NI_NODEADDR_FLAG_ANYCAST	0x20 /* just experimental. not in spec */
#elif _BYTE_ORDER == _LITTLE_ENDIAN
#define NI_NODEADDR_FLAG_LINKLOCAL	0x0100
#define NI_NODEADDR_FLAG_SITELOCAL	0x0200
#define NI_NODEADDR_FLAG_GLOBAL		0x0400
#define NI_NODEADDR_FLAG_ALL		0x0800
#define NI_NODEADDR_FLAG_TRUNCATE	0x1000
#define NI_NODEADDR_FLAG_ANYCAST	0x2000 /* just experimental. not in spec */
#endif
#else  /* draft-ietf-ipngwg-icmp-name-lookups-05 (and later?) */
#if _BYTE_ORDER == _BIG_ENDIAN
#define NI_NODEADDR_FLAG_TRUNCATE	0x1
#define NI_NODEADDR_FLAG_ALL		0x2
#define NI_NODEADDR_FLAG_COMPAT		0x4
#define NI_NODEADDR_FLAG_LINKLOCAL	0x8
#define NI_NODEADDR_FLAG_SITELOCAL	0x10
#define NI_NODEADDR_FLAG_GLOBAL		0x20
#define NI_NODEADDR_FLAG_ANYCAST	0x40 /* just experimental. not in spec */
#elif _BYTE_ORDER == _LITTLE_ENDIAN
#define NI_NODEADDR_FLAG_TRUNCATE	0x0100
#define NI_NODEADDR_FLAG_ALL		0x0200
#define NI_NODEADDR_FLAG_COMPAT		0x0400
#define NI_NODEADDR_FLAG_LINKLOCAL	0x0800
#define NI_NODEADDR_FLAG_SITELOCAL	0x1000
#define NI_NODEADDR_FLAG_GLOBAL		0x2000
#define NI_NODEADDR_FLAG_ANYCAST	0x4000 /* just experimental. not in spec */
#endif
#endif

struct ni_reply_fqdn {
	u_int32_t ni_fqdn_ttl;	/* TTL */
	u_int8_t ni_fqdn_namelen; /* length in octets of the FQDN */
	u_int8_t ni_fqdn_name[3]; /* XXX: alignment */
};
#define ni_reply_nodename ni_reply_fqdn
#define ni_nodename_ttl ni_fqdn_ttl
#define ni_nodename_namelen ni_fqdn_namelen
#define ni_nodename_name ni_fqdn_name

/*
 * Router Renumbering. as router-renum-08.txt
 */
struct icmp6_router_renum {	/* router renumbering header */
	struct icmp6_hdr	rr_hdr;
	u_int8_t	rr_segnum;
	u_int8_t	rr_flags;
	u_int16_t	rr_maxdelay;
	u_int32_t	rr_reserved;
};

#define ICMP6_RR_FLAGS_TEST		0x80
#define ICMP6_RR_FLAGS_REQRESULT	0x40
#define ICMP6_RR_FLAGS_FORCEAPPLY	0x20
#define ICMP6_RR_FLAGS_SPECSITE		0x10
#define ICMP6_RR_FLAGS_PREVDONE		0x08

#define rr_type		rr_hdr.icmp6_type
#define rr_code		rr_hdr.icmp6_code
#define rr_cksum	rr_hdr.icmp6_cksum
#define rr_seqnum 	rr_hdr.icmp6_data32[0]

struct rr_pco_match {		/* match prefix part */
	u_int8_t	rpm_code;
	u_int8_t	rpm_len;
	u_int8_t	rpm_ordinal;
	u_int8_t	rpm_matchlen;
	u_int8_t	rpm_minlen;
	u_int8_t	rpm_maxlen;
	u_int16_t	rpm_reserved;
	struct	in6_addr	rpm_prefix;
};

#define RPM_PCO_ADD		1
#define RPM_PCO_CHANGE		2
#define RPM_PCO_SETGLOBAL	3
#define RPM_PCO_MAX		4

struct rr_pco_use {		/* use prefix part */
	u_int8_t	rpu_uselen;
	u_int8_t	rpu_keeplen;
	u_int8_t	rpu_ramask;
	u_int8_t	rpu_raflags;
	u_int32_t	rpu_vltime;
	u_int32_t	rpu_pltime;
	u_int32_t	rpu_flags;
	struct	in6_addr rpu_prefix;
};
#define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK	0x80
#define ICMP6_RR_PCOUSE_RAFLAGS_AUTO	0x40

#if _BYTE_ORDER == _BIG_ENDIAN
#define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME	0x80000000
#define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME	0x40000000
#elif _BYTE_ORDER == _LITTLE_ENDIAN
#define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME	0x80
#define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME	0x40
#endif

struct rr_result {		/* router renumbering result message */
	u_int16_t	rrr_flags;
	u_int8_t	rrr_ordinal;
	u_int8_t	rrr_matchedlen;
	u_int32_t	rrr_ifid;
	struct	in6_addr rrr_prefix;
};
#if _BYTE_ORDER == _BIG_ENDIAN
#define ICMP6_RR_RESULT_FLAGS_OOB		0x0002
#define ICMP6_RR_RESULT_FLAGS_FORBIDDEN		0x0001
#elif _BYTE_ORDER == _LITTLE_ENDIAN
#define ICMP6_RR_RESULT_FLAGS_OOB		0x0200
#define ICMP6_RR_RESULT_FLAGS_FORBIDDEN		0x0100
#endif

/*
 * icmp6 filter structures.
 */

struct icmp6_filter {
	u_int32_t icmp6_filt[8];
};

#ifdef _WRS_KERNEL
#define	ICMP6_FILTER_SETPASSALL(filterp) \
do {								\
	int i; u_int32_t *p;					\
	p = &(filterp)->icmp6_filt[0];				\
	for (i = 0; i < NELEMENTS((filterp)->icmp6_filt); i++)	\
		p[i] = 0xffffffff;				\
} while (0)

#define	ICMP6_FILTER_SETBLOCKALL(filterp) \
	bzero ((char *)filterp, sizeof(struct icmp6_filter))
#else  /* _WRS_KERNEL */
#define	ICMP6_FILTER_SETPASSALL(filterp) \
	memset(filterp, 0xff, sizeof(struct icmp6_filter))
#define	ICMP6_FILTER_SETBLOCKALL(filterp) \
	memset(filterp, 0x00, sizeof(struct icmp6_filter))
#endif /* _WRS_KERNEL */

#define	ICMP6_FILTER_SETPASS(type, filterp) \
	(((filterp)->icmp6_filt[(type) >> 5]) |= (1 << ((type) & 31)))
#define	ICMP6_FILTER_SETBLOCK(type, filterp) \
	(((filterp)->icmp6_filt[(type) >> 5]) &= ~(1 << ((type) & 31)))
#define	ICMP6_FILTER_WILLPASS(type, filterp) \
	((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) != 0)
#define	ICMP6_FILTER_WILLBLOCK(type, filterp) \
	((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) == 0)

/*
 * Variables related to this implementation
 * of the internet control message protocol version 6.
 */
struct icmp6errstat {
	u_quad_t icp6errs_dst_unreach_noroute;
	u_quad_t icp6errs_dst_unreach_admin;
	u_quad_t icp6errs_dst_unreach_beyondscope;
	u_quad_t icp6errs_dst_unreach_addr;
	u_quad_t icp6errs_dst_unreach_noport;
	u_quad_t icp6errs_packet_too_big;
	u_quad_t icp6errs_time_exceed_transit;
	u_quad_t icp6errs_time_exceed_reassembly;
	u_quad_t icp6errs_paramprob_header;
	u_quad_t icp6errs_paramprob_nextheader;
	u_quad_t icp6errs_paramprob_option;
	u_quad_t icp6errs_redirect; /* we regard redirect as an error here */
	u_quad_t icp6errs_unknown;
};

struct icmp6stat {
/* statistics related to icmp6 packets generated */
	u_quad_t icp6s_error;		/* # of calls to icmp6_error */
	u_quad_t icp6s_canterror;	/* no error 'cuz old was icmp */
	u_quad_t icp6s_toofreq;		/* no error 'cuz rate limitation */
	u_quad_t icp6s_outhist[256];
/* statistics related to input message processed */
	u_quad_t icp6s_badcode;		/* icmp6_code out of range */
	u_quad_t icp6s_tooshort;	/* packet < sizeof(struct icmp6_hdr) */
	u_quad_t icp6s_checksum;	/* bad checksum */
	u_quad_t icp6s_badlen;		/* calculated bound mismatch */
	/*
	 * number of responses: this member is inherited from netinet code, but
	 * for netinet6 code, it is already available in icp6s_outhist[].
	 */
	u_quad_t icp6s_reflect;
	u_quad_t icp6s_inhist[256];
	u_quad_t icp6s_nd_toomanyopt;	/* too many ND options */
	struct icmp6errstat icp6s_outerrhist;
#define icp6s_odst_unreach_noroute \
	icp6s_outerrhist.icp6errs_dst_unreach_noroute
#define icp6s_odst_unreach_admin icp6s_outerrhist.icp6errs_dst_unreach_admin
#define icp6s_odst_unreach_beyondscope \
	icp6s_outerrhist.icp6errs_dst_unreach_beyondscope
#define icp6s_odst_unreach_addr icp6s_outerrhist.icp6errs_dst_unreach_addr
#define icp6s_odst_unreach_noport icp6s_outerrhist.icp6errs_dst_unreach_noport
#define icp6s_opacket_too_big icp6s_outerrhist.icp6errs_packet_too_big
#define icp6s_otime_exceed_transit \
	icp6s_outerrhist.icp6errs_time_exceed_transit
#define icp6s_otime_exceed_reassembly \
	icp6s_outerrhist.icp6errs_time_exceed_reassembly
#define icp6s_oparamprob_header icp6s_outerrhist.icp6errs_paramprob_header
#define icp6s_oparamprob_nextheader \
	icp6s_outerrhist.icp6errs_paramprob_nextheader
#define icp6s_oparamprob_option icp6s_outerrhist.icp6errs_paramprob_option
#define icp6s_oredirect icp6s_outerrhist.icp6errs_redirect
#define icp6s_ounknown icp6s_outerrhist.icp6errs_unknown
	u_quad_t icp6s_pmtuchg;		/* path MTU changes */
	u_quad_t icp6s_nd_badopt;	/* bad ND options */
	u_quad_t icp6s_badns;		/* bad neighbor solicitation */
	u_quad_t icp6s_badna;		/* bad neighbor advertisement */
	u_quad_t icp6s_badrs;		/* bad router advertisement */
	u_quad_t icp6s_badra;		/* bad router advertisement */
	u_quad_t icp6s_badredirect;	/* bad redirect message */
};

/*
 * Names for ICMP sysctl objects
 */
#define ICMPV6CTL_STATS		1
#define ICMPV6CTL_REDIRACCEPT	2	/* accept/process redirects */
#define ICMPV6CTL_REDIRTIMEOUT	3	/* redirect cache time */
#if 0	/*obsoleted*/
#define ICMPV6CTL_ERRRATELIMIT	5	/* ICMPv6 error rate limitation */
#endif
#define ICMPV6CTL_ND6_PRUNE	6
#define ICMPV6CTL_ND6_DELAY	8
#define ICMPV6CTL_ND6_UMAXTRIES	9
#define ICMPV6CTL_ND6_MMAXTRIES		10
#define ICMPV6CTL_ND6_USELOOPBACK	11
/*#define ICMPV6CTL_ND6_PROXYALL	12	obsoleted, do not reuse here */
#define ICMPV6CTL_NODEINFO	13
#define ICMPV6CTL_ERRPPSLIMIT	14	/* ICMPv6 error pps limitation */
#define ICMPV6CTL_ND6_MAXNUDHINT	15
#define ICMPV6CTL_MTUDISC_HIWAT	16
#define ICMPV6CTL_MTUDISC_LOWAT	17
#define ICMPV6CTL_ND6_DEBUG	18
#define ICMPV6CTL_ND6_DRLIST	19
#define ICMPV6CTL_ND6_PRLIST	20
#define ICMPV6CTL_MLD_MAXSRCFILTER	21
#define ICMPV6CTL_MLD_SOMAXSRC	22
#define ICMPV6CTL_MLD_VERSION	23
#define ICMPV6CTL_ND6_MAXQLEN	24
#define ICMPV6CTL_MAXID		25

#define ICMPV6CTL_NAMES { \
	{ 0, 0 }, \
	{ 0, 0 }, \
	{ "rediraccept", CTLTYPE_INT }, \
	{ "redirtimeout", CTLTYPE_INT }, \
	{ 0, 0 }, \
	{ 0, 0 }, \
	{ "nd6_prune", CTLTYPE_INT }, \
	{ 0, 0 }, \
	{ "nd6_delay", CTLTYPE_INT }, \
	{ "nd6_umaxtries", CTLTYPE_INT }, \
	{ "nd6_mmaxtries", CTLTYPE_INT }, \
	{ "nd6_useloopback", CTLTYPE_INT }, \
	{ 0, 0 }, \
	{ "nodeinfo", CTLTYPE_INT }, \
	{ "errppslimit", CTLTYPE_INT }, \
	{ "nd6_maxnudhint", CTLTYPE_INT }, \
	{ "mtudisc_hiwat", CTLTYPE_INT }, \
	{ "mtudisc_lowat", CTLTYPE_INT }, \
	{ "nd6_debug", CTLTYPE_INT }, \
	{ 0, 0 }, \
	{ 0, 0 }, \
	{ "mldmaxsrcfilter", CTLTYPE_INT }, \
	{ "mldsomaxsrc", CTLTYPE_INT }, \
	{ "mldalwaysv2", CTLTYPE_INT }, \
	{ "nd6_maxqueuelen", CTLTYPE_INT }, \
}

#define RTF_PROBEMTU	RTF_PROTO1

#ifdef _WRS_KERNEL
# ifdef __STDC__
struct	rtentry;
struct	rttimer;
struct	in6_multi;
# endif
void	icmp6_init __P((void));
void	icmp6_paramerror __P((struct mbuf *, int));
void	icmp6_error __P((struct mbuf *, int, int, int));
void	icmp6_error2 __P((struct mbuf *, int, int, int, struct ifnet *));
int	icmp6_input __P((struct mbuf **, int *, int));
void	icmp6_fasttimo __P((void));
void	icmp6_slowtimo __P((void));
void	icmp6_reflect __P((struct mbuf *, size_t));
void	icmp6_prepare __P((struct mbuf *));
void	icmp6_redirect_input __P((struct mbuf *, int));
void	icmp6_redirect_output __P((struct mbuf *, struct rtentry *));

struct	ip6ctlparam;
int	icmp6_mtudisc_update __P((struct ip6ctlparam *,
				  struct sockaddr_in6 *));

/* XXX: is this the right place for these macros? */
#define icmp6_ifstat_inc(ifp, tag) \
do {								\
	if (ifp)						\
		((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->icmp6_ifstat->tag++; \
} while (0)

#define icmp6_ifoutstat_inc(ifp, type, code) \
do { \
		icmp6_ifstat_inc(ifp, ifs6_out_msg); \
		switch(type) { \
		 case ICMP6_DST_UNREACH: \
			 icmp6_ifstat_inc(ifp, ifs6_out_dstunreach); \
			 if (code == ICMP6_DST_UNREACH_ADMIN) \
				 icmp6_ifstat_inc(ifp, ifs6_out_adminprohib); \
			 break; \
		 case ICMP6_PACKET_TOO_BIG: \
			 icmp6_ifstat_inc(ifp, ifs6_out_pkttoobig); \
			 break; \
		 case ICMP6_TIME_EXCEEDED: \
			 icmp6_ifstat_inc(ifp, ifs6_out_timeexceed); \
			 break; \
		 case ICMP6_PARAM_PROB: \
			 icmp6_ifstat_inc(ifp, ifs6_out_paramprob); \
			 break; \
		 case ICMP6_ECHO_REQUEST: \
			 icmp6_ifstat_inc(ifp, ifs6_out_echo); \
			 break; \
		 case ICMP6_ECHO_REPLY: \
			 icmp6_ifstat_inc(ifp, ifs6_out_echoreply); \
			 break; \
		 case MLD_LISTENER_QUERY: \
			 icmp6_ifstat_inc(ifp, ifs6_out_mldquery); \
			 break; \
		 case MLD_LISTENER_REPORT: \
		 case MLDV2_LISTENER_REPORT: \
			 icmp6_ifstat_inc(ifp, ifs6_out_mldreport); \
			 break; \
		 case MLD_LISTENER_DONE: \
			 icmp6_ifstat_inc(ifp, ifs6_out_mlddone); \
			 break; \
		 case ND_ROUTER_SOLICIT: \
			 icmp6_ifstat_inc(ifp, ifs6_out_routersolicit); \
			 break; \
		 case ND_ROUTER_ADVERT: \
			 icmp6_ifstat_inc(ifp, ifs6_out_routeradvert); \
			 break; \
		 case ND_NEIGHBOR_SOLICIT: \
			 icmp6_ifstat_inc(ifp, ifs6_out_neighborsolicit); \
			 break; \
		 case ND_NEIGHBOR_ADVERT: \
			 icmp6_ifstat_inc(ifp, ifs6_out_neighboradvert); \
			 break; \
		 case ND_REDIRECT: \
			 icmp6_ifstat_inc(ifp, ifs6_out_redirect); \
			 break; \
		} \
} while (0)

#ifndef VIRTUAL_STACK
extern int	icmp6_rediraccept;	/* accept/process redirects */
extern int	icmp6_redirtimeout;	/* cache time for redirect routes */
#endif /* !VIRTUAL_STACK */
#endif /* _WRS_KERNEL */

#ifdef __cplusplus
}
#endif

#endif /* not _NETINET_ICMP6_H_ */
